PROFORCE SMD975 Semi Metallic Disc Brake Pads Set (Both Left and Right) - Rear Shimmed, Chamfered and Slotted, Low Dust, Quiet, high level of steel fibre for Extended Life. Lab test 30,000 KM. Engineered high grade composite materials for superior braking and extended life. Strong resistance to fade under load and totally resistant to rotor vibration. Enhanced friction for superior stopping, comfort, performance and low-dust for cleaner wheels. New standard for quiet, reliable braking that last longer and provide superior stopping.